Question

The bit rate for a signal, which has a sampling rate of `8 kHz` and whare `16` quantisation levels have been used is
A. `32000 bits//sec`
B. `16000 bits//sec`
C. `64000 bits//sec`
D. `72000 bits//sec`

Answer 1

Correct Answer - A
(`1`) If`n` is the number of bits per sample, the `n` number of quantisation level `=2^(n)` Since the number of quantisation level is `16`
`implies 2^(n)=16` then `n=4`
bit rate=sampling ratexxno. Of bits per sample
`=8000xx4=32,000 bits//sec`.